A carpenter on the roof of a building accidentally drops her hammer. As the hammer falls it passes two windows of equal height, as shown in FIGURE 2-39.
(a) Is the increase in speed of the hammer as it drops past window 1 greater than, less than, or equal to the increase in speed as it drops past window 2?
(b) Choose the best explanation from among the following:
I. The greater speed at window 2 results in a greater increase in speed.
II. Constant acceleration means the hammer speeds up the same amount for each window.
III. The hammer spends more time dropping past window 1.
In Figure 2-39.